Gas-cautery



(No Model.)

0. GRAEFE.

GAS OAUTERY. No. 319,698. I Patnted June 9, 1885.

WITNESSES 5 I INVENTOR:

ATTORNEYS.

Entree STATES PATENT Orricn.

CHARLES GRAEFE, OF SANDUSKY, OHIO.

GAS-CAUTERY.

SEECIIEICATION forming part of Letters'Pateht No. 319,698, dated June 9, 1885.

Application filed December 27, 1884. (No model.)

To all whom it may concern/.-

Be it known that I, CHARLES GRAEFE, of Sandusky, in the county of Erie and State of Ohio, have invented a new and Improved Gas-Cautery, of which the following is a full, clear, and exact description.

My invention relates to cauteries heated by coal or hydrocarbon gas; and the object of the invention is to force the gas-flame into the hollow cone of the instrument by means of compressed air discharged at the point of combustion in the manner of a blow-pipe. To that end I provide an instrument of-suitable construction with separate tubes-one for the gas and the other for the air, the ends of which are so bent that the current of air is discharged at right angles, or nearly so, to the coal-gas or flame, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal section of the instrument complete. platinum piece or cautery proper, having an extension-piece attached, and the other figures represent different forms of the cone or cautery.

A is the handle of the instrument, the same being a tube of wood or other suitable material, lined with asbeslus, and provided with supports a a, internally, for the two tubes 1) 0. To the end of the wooden handle is secured the platinum cone or cautery B, that may be of any suitable shape, either sharp, round, curved, knife form, or otherwise, as illustrated in Figs. 3, 4, and 5. The two tubes 1) c are bound together by means of a clamp, d, which is provided with a stem, h, and but ton, extending through a slot in the handle, so that the tubes can be moved backward and forward to bring their ends to the desired place. The gas-tube c has its extremity curved, and the air-tube b has its extremity bent, so as to discharge the air across the extremity of the gas-tube, and the two tubes Fig. 2 is a section of the may be adjusted one upon the other to bring the points or extremities to their proper position.

In connection with the instrument there is to be used a suitable reservoir of compressed air, which will be supplied by means of a pump or by a double rubber bulb, as shown in Fig. 6, and the gas'will also be supplied from a reservoir where gas-pipes are not accessible, and both pipes, b c, are provided with valves at f for regulating the flow of gas and air. At 9 are holes for the admission of air and for use in lighting the gas.

At B in Fig. 2 is shown an extension-piece for lengthening the cpne or cautery, and at d, Fig. 1, is an additional clamp, with which the stem h can be connected when the extension-piece B is used.

By this construction and arrangement, the gas being lighted, it is forced by the current of compressed air into the cone or cautery, and a hot flame is thus produced, on the principle of the blow-pipe, by which the cone or cautery is quickly and highly heated.

I do not limit myself to the special details of construction, as they may be varied.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. The combination, with a cautery-tube closed at one end, and a gas-pipe therein, of an air-pipe for discharging a current of air across the gas-flame, to increase the intensity of the flame, and to direct the same into the closed end of the tube, substantially as herein shown and described.

2. The combination, with the cautery-tube B, provided with the openings 9, of the air and gas pipesb 0, provided with the valvesf, substantially as herein shown and described.

3. In a gas-cautery, the combination'of the handle A, the cone'or cautery B, and the adjustable pipes b a, substantially as described.

- CHARLES GRAEFE.

Witnesses:

CHAS. R. MELVILLE, HENRY GRAEFE. 

